-- 查询年龄大于18岁的用户 SELECT * FROM users WHERE age > 18; -- 查询特定城市的用户 SELECT * FROM users WHERE city = '北京'; -- 多条件查询 SELECT * FROM users WHERE age >= 18 AND status = 'active';
-- 查询年龄大于18岁的用户 SELECT * FROM users WHERE age > 18; -- 查询特定城市的用户 SELECT * FROM users WHERE city = '北京'; -- 多条件查询 SELECT * FROM users WHERE age >= 18 AND status = 'active';